1. The problem statement, all variables and given/known data When I'm trying to find the probability of finding an electron within a sphere of a certain radius, do i integrate the radial distribution probability function with respect to r from 0 to infinity? My book says the product of the radial distribution function times dr would give the probability, but I always thought you had to integrate it. 2. Relevant equations n/a just looking for a simple answer to my question... i didnt show the hw problem cos i wanna do it myself i just want this question answered. 3. The attempt at a solution I've attempted the problem, i just integrated and I wanna know if you should integrate.